Gary E Varvel: search on Z-Library

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1

Use of Remote-Sensing Imagery to Estimate Corn Grain Yield

Shanahan, John F., Schepers, James S., Francis, Dennis D., Varvel, Gary E., Wilhelm, Wallace W., Tringe, James M., Schlemmer, Mike R., Major, David J.

Journal:

Agronomy Journal

Year:

2001

Language:

english

File:

PDF, 274 KB

english, 2001

2

Monitoring Soil Quality to Assess the Sustainability of Harvesting Corn Stover

Karlen, Douglas L., Varvel, Gary E., Johnson, Jane M. F., Baker, John M., Osborne, Shannon L., Novak, Jeff M., Adler, Paul R., Roth, Greg W., Birrell, Stuart J.

Journal:

Agronomy Journal

Year:

2011

Language:

english

File:

PDF, 580 KB

english, 2011

3

Long-term nitrogen use and nitrogen-removal index in continuous crops and rotations

Charles F Yamoah, Gary E Varvel, William J Waltman, Charles A Francis

Journal:

Field Crops Research

Year:

1998

Language:

english

File:

PDF, 487 KB

english, 1998

4

Multilocation Corn Stover Harvest Effects on Crop Yields and Nutrient Removal

Karlen, Douglas L., Birrell, Stuart J., Johnson, Jane M. F., Osborne, Shannon L., Schumacher, Thomas E., Varvel, Gary E., Ferguson, Richard B., Novak, Jeff M., Fredrick, James R., Baker, John M., Lamb

Journal:

BioEnergy Research

Year:

2014

Language:

english

File:

PDF, 464 KB

english, 2014

5

Soil organic matter assessments in a long-term cropping system study

Varvel, Gary E., Liebig, Mark A., Doran, John W.

Journal:

Communications in Soil Science and Plant Analysis

Year:

2002

Language:

english

File:

PDF, 163 KB

english, 2002

6

Nitrogen and harvest effects on soil properties under rainfed switchgrass and no-till corn over 9 years: implications for soil quality

Stewart, Catherine E., Follett, Ronald F., Pruessner, Elizabeth G., Varvel, Gary E., Vogel, Kenneth P., Mitchell, Robert B.

Journal:

Year:

2015

Language:

english

File:

PDF, 740 KB

english, 2015

7

Soil Carbon Response to Projected Climate Change in the US Western Corn Belt

Wienhold, Brian J., Jin, Virginia L., Schmer, Marty R., Varvel, Gary E.

Journal:

Journal of Environment Quality

Year:

2018

Language:

english

File:

PDF, 1.31 MB

english, 2018

8

Rotation and Nitrogen Fertilization Effects on Changes in Soil Carbon and Nitrogen

Varvel, Gary E.

Journal:

Agronomy Journal

Year:

1994

Language:

english

File:

PDF, 187 KB

english, 1994

9

Relationship Between Spectral Data from an Aerial Image and Soil Organic Matter and Phosphorus Levels

Gary E. Varvel, Michael R. Schlemmer, James S. Schepers

Journal:

Precision Agriculture

Year:

1999

Language:

english

File:

PDF, 351 KB

english, 1999

10

Ibuprofen attenuates oxidative damage through NOX2 inhibition in Alzheimer's disease

Brandy L. Wilkinson, Paige E. Cramer, Nicholas H. Varvel, Erin Reed-Geaghan, Qingguang Jiang, Alison Szabo, Karl Herrup, Bruce T. Lamb, Gary E. Landreth

Journal:

Neurobiology of Aging

Year:

2012

Language:

english

File:

PDF, 2.27 MB

english, 2012

11

Soil Carbon Sequestration by Switchgrass and No-Till Maize Grown for Bioenergy

Ronald F. Follett, Kenneth P. Vogel, Gary E. Varvel, Robert B. Mitchell, John Kimble

Journal:

BioEnergy Research

Year:

2012

Language:

english

File:

PDF, 543 KB

english, 2012

12

Soil Greenhouse Gas Emissions in Response to Corn Stover Removal and Tillage Management Across the US Corn Belt

Jin, Virginia L., Baker, John M., Johnson, Jane M.-F., Karlen, Douglas L., Lehman, R. Michael, Osborne, Shannon L., Sauer, Thomas J., Stott, Diane E., Varvel, Gary E., Venterea, Rodney T., Schmer, Mar

Journal:

BioEnergy Research

Year:

2014

Language:

english

File:

PDF, 813 KB

english, 2014

13

Precipitation Use Efficiency of Soybean and Grain Sorghum in Monoculture and Rotation

Varvel, Gary E.

Journal:

Soil Science Society of America Journal

Year:

1995

Language:

english

File:

PDF, 215 KB

english, 1995

14

Ability for In-Season Correction of Nitrogen Deficiency in Corn Using Chlorophyll Meters

Varvel, Gary E., Schepers, James S., Francis, Dennis D.

Journal:

Soil Science Society of America Journal

Year:

1997

Language:

english

File:

PDF, 216 KB

english, 1997

15

The Impact of Corn Residue Removal on Soil Aggregates and Particulate Organic Matter

Osborne, Shannon L., Johnson, Jane M. F., Jin, Virginia L., Hammerbeck, Amber L., Varvel, Gary E., Schumacher, Tom E.

Journal:

BioEnergy Research

Year:

2014

Language:

english

File:

PDF, 216 KB

english, 2014

16

Assessing the Soil Carbon, Biomass Production, and Nitrous Oxide Emission Impact of Corn Stover Management for Bioenergy Feedstock Production Using DAYCENT

Campbell, Eleanor E., Johnson, Jane M. F., Jin, Virginia L., Lehman, R. Michael, Osborne, Shannon L., Varvel, Gary E., Paustian, Keith

Journal:

BioEnergy Research

Year:

2014

Language:

english

File:

PDF, 633 KB

english, 2014

17

Crop Residue Mass Needed to Maintain Soil Organic Carbon Levels: Can It Be Determined?

Johnson, Jane M. F., Novak, Jeff M., Varvel, Gary E., Stott, Diane E., Osborne, Shannon L., Karlen, Douglas L., Lamb, John A., Baker, John, Adler, Paul R.

Journal:

BioEnergy Research

Year:

2014

Language:

english

File:

PDF, 302 KB

english, 2014

18

Big Bluestem Pasture in the Great Plains: An Alternative for Dryland Corn

Rob Mitchell, Ken Vogel, Gary Varvel, Terry Klopfenstein, Dick Clark and Bruce Anderson

Journal:

Year:

2005

Language:

english

File:

PDF, 495 KB

english, 2005

19

REVIEW: Balancing limiting factors & economic drivers for sustainable Midwestern US agricultural residue feedstock supplies

Wilhelm, Wally W., Hess, J. Richard, Karlen, Douglas L., Johnson, Jane M. F., Muth, David J., Baker, John M., Gollany, Hero T., Novak, Jeff M., Stott, Diane E., Varvel, Gary E.

Journal:

Industrial Biotechnology

Year:

2010

Language:

english

File:

PDF, 6.40 MB

english, 2010

20

Container and Installation Time Effects on Soil Moisture, Temperature, and Inorganic Nitrogen Retention for an in situ Nitrogen Mineralization Method

Wienhold, Brian J., Varvel, Gary E., Wilhelm, W. W.

Journal:

Communications in Soil Science and Plant Analysis

Year:

2009

Language:

english

File:

PDF, 284 KB

english, 2009

21

Big Bluestem Pasture in the Great Plains: An Alternative for Dryland Corn

Mitchell, Rob, Vogel, Ken, Varvel, Gary, Klopfenstein, Terry, Clark, Dick, Anderson, Bruce

Journal:

Year:

2005

Language:

english

File:

PDF, 148 KB

english, 2005

22

Nitrogen and harvest effects on soil properties under rainfed switchgrass and no-till corn over 9 years: implications for soil quality

Stewart, Catherine E., Follett, Ronald F., Pruessner, Elizabeth G., Varvel, Gary E., Vogel, Kenneth P., Mitchell, Robert B.

Journal:

Year:

2015

File:

PDF, 740 KB

2015

23

CQESTR Simulated Changes in Soil Organic Carbon under Residue Management Practices in Continuous Corn Systems

Wienhold, Brian J., Schmer, Marty R., Jin, Virginia L., Varvel, Gary E., Gollany, Hero

Journal:

BioEnergy Research

Year:

2016

Language:

english

File:

PDF, 461 KB

english, 2016

24

N fertilizer and harvest impacts on bioenergy crop contributions to SOC

Stewart, Catherine E., Follett, Ronald F., Pruessner, Elizabeth G., Varvel, Gary E., Vogel, Kenneth P., Mitchell, Robert B.

Journal:

Year:

2015

Language:

english

File:

PDF, 442 KB

english, 2015

25

Long-term no-till and stover retention each decrease the global warming potential of irrigated continuous corn

Jin, Virginia L., Schmer, Marty R., Stewart, Catherine E., Sindelar, Aaron J., Varvel, Gary E., Wienhold, Brian J.

Journal:

Global Change Biology

Year:

2017

Language:

english

File:

PDF, 669 KB

english, 2017

26

Long-Term Corn and Soybean Response to Crop Rotation and Tillage

Sindelar, Aaron J., Schmer, Marty R., Jin, Virginia L., Wienhold, Brian J., Varvel, Gary E.

Journal:

Agronomy Journal

Year:

2015

Language:

english

File:

PDF, 2.55 MB

english, 2015

27

Vertical Distribution of Structural Components in Corn Stover

Johnson, Jane, Karlen, Douglas, Gresham, Garold, Cantrell, Keri, Archer, David, Wienhold, Brian, Varvel, Gary, Laird, David, Baker, John, Ochsner, Tyson, Novak, Jeff, Halvorson, Ardell, Arriaga, Franc

Journal:

Agriculture (MDPI)

Year:

2014

Language:

english

File:

PDF, 1.85 MB

english, 2014

28

Light Reflectance Compared with Other Nitrogen Stress Measurements in Corn Leaves

Blackmer, Tracy M., Schepers, James S., Varvel, Gary E.

Journal:

Agronomy Journal

Year:

1994

Language:

english

File:

PDF, 134 KB

english, 1994

29

Nitrogen Deficiency Detection Using Reflected Shortwave Radiation from Irrigated Corn Canopies

Blackmer, Tracy M., Schepers, James S., Varvel, Gary E., Walter-Shea, Elizabeth A.

Journal:

Agronomy Journal

Year:

1996

Language:

english

File:

PDF, 167 KB

english, 1996

30

Crop Rotation Affects Corn, Grain Sorghum, and Soybean Yields and Nitrogen Recovery

Sindelar, Aaron J., Schmer, Marty R., Jin, Virginia L., Wienhold, Brian J., Varvel, Gary E.

Journal:

Agronomy Journal

Year:

2016

Language:

english

File:

PDF, 498 KB

english, 2016

31

Twelve Years of Stover Removal Increases Soil Erosion Potential without Impacting Yield

Jin, Virginia L., Schmer, Marty R., Wienhold, Brian J., Stewart, Catherine E., Varvel, Gary E., Sindelar, Aaron J., Follett, Ronald F., Mitchell, Robert B., Vogel, Kenneth P.

Journal:

Soil Science Society of America Journal

Year:

2015

Language:

english

File:

PDF, 823 KB

english, 2015

32

A Simple Performance-Based Index for Assessing Multiple Agroecosystem Functions

Liebig, Mark A., Varvel, Gary, Doran, John

Journal:

Agronomy Journal

Year:

2001

Language:

english

File:

PDF, 107 KB

english, 2001

33

Fractal Analysis of Temporal Yield Variability of Crop Sequences: Implications for Site-Specific Management

Eghball, Bahman, Varvel, Gary E.

Journal:

Agronomy Journal

Year:

1997

Language:

english

File:

PDF, 154 KB

english, 1997

34

Analysis of Aerial Photography for Nitrogen Stress within Corn Fields

Blackmer, Tracy M., Schepers, James S., Varvel, Gary E, Meyer, George E.

Journal:

Agronomy Journal

Year:

1996

Language:

english

File:

PDF, 140 KB

english, 1996

35

Switchgrass ecotypes alter microbial contribution to deep-soil C

Roosendaal, Damaris, Stewart, Catherine E., Denef, Karolien, Follett, Ronald F., Pruessner, Elizabeth, Comas, Louise H., Varvel, Gary E., Saathoff, Aaron, Palmer, Nathan, Sarath, Gautam, Jin, Virginia

Journal:

Year:

2016

Language:

english

File:

PDF, 2.08 MB

english, 2016

36

Weather and Management Impact on Crop Yield Variability in Rotations

Yamoah, Charles F., Francis, Charles A., Varvel, Gary E., Waltman, William J.

Journal:

Year:

1998

Language:

english

File:

PDF, 3.17 MB

english, 1998

37

Midseason Stalk Breakage in Corn As Affected by Crop Rotation, Hybrid, and Nitrogen Fertilizer Rate

Wilhelm, Wallace W., Liebig, Mark A., Varvel, Gary E., Blackmer, Tracy M.

Journal:

Agronomy Journal

Year:

1999

Language:

english

File:

PDF, 168 KB

english, 1999

38

Weather and Management Impact on Crop Yield Variability in Rotations

Yamoah, Charles F., Francis, Charles A., Varvel, Gary E., Waltman, William J.

Journal:

Year:

1998

File:

PDF, 3.17 MB

1998

39

Midseason Stalk Breakage in Corn As Affected by Crop Rotation, Hybrid, and Nitrogen Fertilizer Rate

Wilhelm, Wallace W., Liebig, Mark A., Varvel, Gary E., Blackmer, Tracy M.

Journal:

Agronomy Journal

Year:

1999

File:

PDF, 168 KB

1999

40

Management controls the net greenhouse gas outcomes of growing bioenergy feedstocks on marginally productive croplands

Jin, Virginia L., Schmer, Marty R., Stewart, Catherine E., Mitchell, Robert B., Williams, Candiss O., Wienhold, Brian J., Varvel, Gary E., Follett, Ronald F., Kimble, John, Vogel, Kenneth P.

Journal:

Science Advances

Year:

2019

File:

PDF, 529 KB

2019

41

No-Till Corn after Bromegrass: Effect on Soil Carbon and Soil Aggregates

Follett, Ronald F., Varvel, Gary E., Kimble, John M., Vogel, Kenneth P.

Journal:

Agronomy Journal

Year:

2009

File:

PDF, 900 KB

2009

42

Reduction of High Soil Test Phosphorus by Corn and Soybean Varieties

Eghball, Bahman, Shanahan, John F., Varvel, Gary E., Gilley, John E.

Journal:

Agronomy Journal

Year:

2003

File:

PDF, 90 KB

2003

43

Monoculture and Rotation System Effects on Precipitation Use Efficiency of Corn

Varvel, Gary E.

Journal:

Agronomy Journal

Year:

1994

File:

PDF, 186 KB

1994

44

Effects of Western Corn Belt Cropping Systems on Agroecosystem Functions

Liebig, Mark A., Varvel, Gary E.

Journal:

Agronomy Journal

Year:

2003

File:

PDF, 68 KB

2003

45

Longâterm rotation diversity and nitrogen effects on soil organic carbon and nitrogenÂ stocks

Schmer, Marty R., Jin, Virginia L., Wienhold, Brian J., Becker, Sophia M., Varvel, Gary E.

Journal:

Agrosystems, Geosciences & Environment

Year:

2020

File:

PDF, 384 KB

2020

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